| 摘要 |
A device for relay distributed current control with heavy-rate working comprises a winding of an electromagnetic normally-open relay, a circuit for relay heavy-rate switching on, a circuit for protection of a load against short-circuit. For individual control of four relays (it is possible to control more relay or other actuating electromagnetic elements) in order to increase reliability, to decrease amount of elements and overall sizes of the device in parallel with the winding of every relay a protective element is connected, and in series with the winding - a switching element with control input, forming in this way a switching cell with the corresponding control input and terminals of open contacts for supply of load current, where relay windings and switching element being not united form the first and second terminals of power supply of the switching cell, accordingly. |
